Rivet inserting tool



l.. FRANK RIVET INSERTING TOOL July 13, 194s.

2 Sheets-Sheet 1 Filed May 15, 1945 July 13, 1948. L. FRANK l 2,445,026

RIVET INSERTING TOOL 2 sheets-sheet 2' Patented July 13, `--1948 PATENT2,445,026 RNErINsER'rrNGlrooL if Louisirrakmeuws; Calif.'

@Application May' .215, 1945,==ser.i"a1 No. lsse-,833 .sciame (Grimm) Ki" My invention relates Vvtofa rivet setting `toolfandhasforitsfprincipalobject theprovisions of a. relaytively"sirnple,practical V'and inexpensivemanually operabletool for insertingv rivetsin holes which varefdrilledfor`punched inparts which are torbe united byrivets and which tool, lwithxslight fclfia1`tiges,-fniayy beemployed forthe 'feeding and :inserting-of 4Salewa-short nails, tacks andthe like.

1A further object of my'inventionisto provide a l'rivetfinsertingStooi'which embodies: an elongated tube'whicliserves as aholder foraseries of rivetsor the like,"and one end of said tube being{provided-with means for controlling the discharge Avgof"-rivetsffrom:the end ofl the tube and another "formfof "the tool comprisingv an4elongated tubular holder with a separately formed rivet dischargingheadf which is "removablypositioned' on one Send of the tubular holder,ithus making it possible to `utilize different :holders with tliev rivetdischarg- *ingiheact further object vof -my invention is to .provide k:arivetf'nsertingtoolof the character referred to lwith lflexible meansadapted to pass: around' the wrist ofthen user of the tool', thusenabling'said t'ooito be conveniently employed vfor lthe rapid insertionof rivets or the like into their-holes.

" With` Vthe foregoing and other `objects in View,

4Hflig. lisa-perspective view of a rivet "inserting l"tool `heldin fandonthe users'hand as the saine appearswliile setting rivets in a row ofholes.

Fig.: 2 lis av fse'ction taken lengthwise through "the :center of; thetool.

the' direction Vindicated bythe Aarrow" 4in Fig.- 3.

Fig.` 51-is asectionalv elevational view taken'V on the line V5`5'offFig 3.

|`v`Fig.l 6 is a sectional'vi'ew partly in elevation'and 'showingamodied form vof the rivet discharging means.

Fig.7 is van 'e1evationalview of'a further modi- Hdform 'off' the lrivetdischarging means.

Fig. 8 is an elevational 'View taken lookingf'in thedir'ectionindicatedby the arrow 8 1in Fig. 7.

l F-igi'lOis a'perspectiveviewpf a portion of ,the form of rivetdischargeheadA4 seen in `ligs. 7fand8.

- lFigf. v 11.' is' anelevationalfview, paz'ctlyzinfsection;l

ving; I 2.

,r2 andshoWing-afurther modied form; ofthe rivet -discharging means.

^Fig.f12;is :anf elevationalv viewfpartly infsection, of a furthermodified form fof rivet @discharge h'ead. l f AFig. l3-is alongitudinal' section'taken through the center. of -a further modifiedform.

VReferringv fby` :numerals tov the accompanying drawings; and, Iparticularly tothe yforrnqor rivet inserter illustrated "in Figs. 1-. to5 inclusive,v I0 designates a tube'whieh may --be dany-desired andconvenient length, for'instance, from twelve Ito twenty Linches or-more,the yupper end of which plug -is closed by a removablepl11g1or\capIIa-and lformed through the ywall of lsaid tube adjacent -its upper. endis arr-opening -I 2v surroundedv by-acup l3zopened .at its .upper end,thus permittingrivets, screws orV the like to. -be loaded into i thetube.

Arranged for sliding movement irratubey I0 ,-is

-a plunger Ikprovided withopposit'elyfarranged studs I5v 'which' projectthrougl'i-longitutlinallyv disposed-'slotsfIB lformed in said tube andarranged between vsaid plunger and the'xplug IIvis an expansivellcoil-'spring I 1V which as it :expandszforces plunger44downwardly'vthrough? the tube. At

ythe upper end `of the vslots I6 areformed-notches ia'which receive thestudse :I5 when'` the rsarne is -moved to itsupperglimi-t of'movement,andwhen the plunger is-so positioned,` rivetsl orithelike, .maybe'deliveredin-to the tubethroughtheiopen- The lower tend ofthe tube :Iiislpartially :closed by an arcuate flange I9, the openingl inzwhich isapproximately sernicircnrlarv inxshape andswhich is concentric with 'theaxis vof theftubeg: such constems S of the Arivets'when the headsthereof @are resting. onltop 'of the -rfiange .I9 (see Figs.

I porting flange 1I9fis"an'opening 2 i .through which -'the-heads uf'ythe vrvetsapass as? the vend of the l'tool Securedon the lower portionof theztube' IIJf-just vsitely arrangedvearsl v23- and pivoted--to theseears are arms 24 provided on their lower endsrwith-ingersZliwhich-passthroughwopenings 26 formed -openingfZ Il therein. 'EheLinnere-endsy of these fingers 25j are pointed fory engagement ,With thelower'V- endsfofthe: rivets that are. handled byj the through-thewallwofgtube yIIIA tothe sides loffthe toolg.. anclf-th'e.-underfacesvoffsaid. -fingers are/.con-

smvexlyqcurved Ator-f.engagement with .the uppen surarms 24 and the tubeil] are expansive coil springs 21 which normally maintain said arms inposition with the fingers 25 projecting through the. apertures 26 so asto engage the two lowermost rivets as illustrated in Figs. 2 and 6.

Detachably secured to an eye 28 which pro#l jects from collar 25 is ahook 29 and connected to said hook is a strap 30 which is adapted topass around the wrist of the users hand as illustrated in Fig. 1,thusenabling the tool to be carried upon the users arm while rivets arebeing inserted in' their holes or while the tube is being loaded withafresh supply of rivets.

In the use of my improved rivet inserting tool, the lower portion of thetube l is held by the fingers and thumb in a mannersimilar to theholding of a pen or pencil, and thus the thumb and index finger are inposition to exert inward pressure on the upper ends of the arm 24.

`During rivet inserting operations, the shank of the lowermost rivetprojects through opening 2i] from the lower end of the tool with thehead of said rivet resting upon flange I9 with the convex under faces oithe iingers 25 resting on the upper surface of the rivet head and withthe ends of said fingers positionedbeneath the lower end of the shank ofthe next adjacent rivet as illustrated in Fig. 2.

The shank `of the lowermost rivet is now inserted in the aperture in thework and the upper ends of the arms 24 are now pressed inwardly and atthe same time, the lower end of the tool is drawn toward the operator orin the direction indicated by the arrow, on the surface of the lowerportion of tube I0 as seen in Fig. 3, which ymovement disengages thetool from the head of the inserted rivet and permits the next adjacentrivet, under pressure of spring I2, to move downwardly through the toolpast the withdrawn fingers 25 until the head of said rivet rests onViiange I9 with the shank projecting through opening 20.

The operations just described may be quickly performed, thus greatlyexpediting the work incident to the setting or inserting of a largenumber of rivets, or the like, in their holes.

In the construction illustrated `in Figs. '1 to 10 inclusive, a collar35 similar to collar 22 is adjustably mounted upon the tube I9 by meansof a set screw 36a and this collar carries the pivoted arms 31 whichcontrol the discharge Vof rivets from the lower end of the tube.Projecting outwardhT from :collar 35 is a perforated ear 36 for thereception of the hook 23 and projecting downwardly from said collar isan L-shaped bracket 31 in the lower horizontal portion of which islocated a notch 38.

The upper end of a spring 39 is secured to collar 35 below the ear 36and the horizontally dis. posed lower portion 40 of said spring occupiesa substantially horizontal position and extends beneath the opened lowerend of the rivet feeding tube l0.` Formed in the end of member 40 is anotch :4| and that/portion `of said member sur-r* 4 rounding said notchis positioned directly below the opened end of tube I0 and takes theplace of the anges I9 in the structure previously described. Thus, thehead of the lowermost one of the rivets discharging from the tube restson the end of member 40 with the shank of said rivet projecting throughnotch 4l, as illustrated in Figs. '7, 8 and 9.l

The notched end of the member 40 may be adjusted toward and away fromthe end of the tube I0 for the accommodation of rivet heads of differentshapes and this adjustment is accomplished by a pin 42 which is iixed toand prol jects upwardly from the horizontal lower portion 4U of spring39 and `which pin passes through notch38 in bracket 31 and the upper endof which 'j pinV isjthreaded for the accommodation of adjusting and locknuts 43. Spring 39 and member 40 are formed of resilient material andnormally the notched end of member 40 tendsto move away from the opened.end of tube l0 as shown by dotted lines in Fig. 7 and bymanipulations ofthenuts 43, the end of said member may be drawn upwardly so as tooccupyr a position` against or immediately adjacent the lower end of thetube.

In Fig. 1l, I have shown a rivet inserting tool which vincludes a body44 which functions as a handle, and formed through said handle is a bore45 for the accommodation of therivet carrying tube 45 very similar totube I0.. Formedon the forward end of handle is a head41 having achamber 48 which communicates with the formed end Vof bore 45, andformed in the latter a short distance rearwardly from said chamber is ashoulder 49.

Mounted for rotation in chamber 48r is a disc 5i) having on itsperipherya notched hook 5|- for engaging beneath the heads of the rivets as theydischarge from tube 46, and this rotary member 50 is'actuated by arachet and pinion arrangement 'between said disc and the straight armportion of trigger 52 which latter is mounted for operation in and'uponthe side of head 41 and said trigger being held at its outermost limitof movement by a coil'spring V53.

In this construction, a collar 54 is secured on the forward end of therivet carrying tube 46 and secured to said collar and projecting to theadjacent endof the tube are-spring arms 55, the ends of which areprovided with inwardly turned hooks 56 which project inwardly over theend of the tube so as to engage the head of the outer one of the rivetscontained in said tube and prevent the same from discharging therefrom.`

Under normal conditions, the hooked ends of the spring arms 55 flex awayfrom the end of the rivet tube and after the latter has been loaded withrivets, the hooked ends of the spring arms are moved inwardly to retainthe rivets in the tube by means of a ring 51 which is mounted forsliding movement on the end portion of the tube beyond the collar 54 andupon said springarms.

When a tube loaded withrivets and retained therein by the hooked ends 56of the springs 55V is inserted in the tool, the ring 51 will engageagainst shoulder 49 and move rearwardly from rivet from its position atthe end of the rivet tube around the chamber 48 to a position as shownby dotted lines in Fig. 11 so that it may be inserted in the rivet holeand when trigger 52 is released, the spring 53 will return the disc toits normal position so as to engage the next rivet discharging from theend of the tube.

In Fig. 12, I have illustrated a head which may be Idetachably appliedto the discharge ends of rivet tubes and this head comprises a tubularmember 58 provided at its outer end with a rivet discharge opening 59and with rivet supporting flanges 60 similar to the anges I9 previouslydescribed, and this head is detachably secured on the end of the rivettube by means of a conventional bayonet joint 6l. Thus, a few heads 58provided with differently shaped openings 59 and rivet retaining flanges60 may be utilized with an indefinite member of rivet containing tubes,such as IB.

In Fig. 13, I have shown a modiiied construction wherein a tube 62 isadapted to contain rivets such as R and which rivets are forced towardthe lower or forward end of the tube by a spring pressed plunger 63.'This plunger is moved toward the discharge end of the tube by anexpansive coil spring 64 and is held at its upper limit of movement whenthe tube is loaded with rivets by means of a stud 65 which engages in anotch 66 at the upper or rear end of a slot 61 through which said studtravels as the rivets are fed from the lower or forward end of the tube.

The lower or forward end of the tube 62 is provided with a flange 68 forsupporting the head of the lowermost one of the rivets in the tube, andformed in the tube just above s aid flange is an aperture 69 throughwhich the rivets pass as they discharge from the tube. Rivets are loadedinto tube 62, by inserting the rivets, one at a time into the lower endof'said tube, with the rivet heads passing horizontally through aperture69 and then moving said rivets upwardly within the tube against theyielding resistance of spring 54.

In Figs. 3 and 6, I have shown a construction wherein the collar l22which carries the arms 25 is mounted for longitudinal adjustment on thelower end of the tube I0, and to accomplish such an adjustment, a screw22a is seated in the collar I22 and the inner end of said screw isadapted to engage in any one of a series of closely spaced indentations22h which are formed in the surface of tube.

Thus, the lingers 25 which engage between the two lowermost rivets inthe tube may be adjusted longitudinally with respect to sai'd tube forthe accommodation of rivets having diierent head shapes.

Thus, it will be seen that I have provided a rivet inserting tool whichis simple in construction, inexpensive of manufacture, and veryeffective in performing the functions for which it is intended.Practically all of the parts of my improved setting tool andparticularly the tube, the plunger and the pivoted levers at the forwardor lower end of the tube for controlling the discharge of rivetstherefrom may be formed of any of the well known plastics now on themarket.

It will be understood that minor changes in the size, form andconstruction of the various parts of my improved rivet inserting toolmay be made and substituted for those herein shown and described withoutdeparting from the spirit of my invention, the scope of which is setforth in the appended claims.

I claim as my invention:

1. In a tool for inserting rivets, screws and the like, a tube, a springpressed plunger arranged for sliding movement in said tube, a rivetsupporting flange located within the discharge end of said tube andprovided with a notch for the accommodation of the Shanks of rivets andthe like, there being an opening in the wall of said tube just above thenotch in said flange for the discharge of the heads of rivets from saidtube, there being openings formed in the tubes to the sides of the firstmentioned opening, a ring mounted for longitudinal vadjustment on thelower portion of said tube, spring pressed arms pivoted on said ring andfingers projecting from the 1ower ends of said arms through said lastmentioned openings for engaging between the head of the lowermost rivetand the end of the shank of the next adjacent rivet the length of saidlast mentioned openings being substantially greater than the thicknessof said ngers in order to permit the latter to be adjusted to differentpositions lengthwise of said openings.

2. A tool for inserting rivets and the like as set forth in claim 1 witha wrist engaging strap detachably connected to said ring.

3. A tool for inserting rivets `and the like as set forth in claim 2,ysaid tube being provided near its upper end with a rivet receivingopening and a cup disposed below and to the sides of said opening.

LOUIS FRANK.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,156,434 Raptias Oct. 12, 19151,199,653 Bacolini Sept. 26, 1916 1,575,753 Gibson Mar. 9, 19261,945,144 Follett Jan. 30, 1934 2,244,595 Amiot June 3, 1941 2,256,382Dole Sept. 16, 1941 2,286,809 Hutchison June 16, 1942 2,337,506 Tea Dec.21, 1943 2,366,448 Greene Jan. 2, 1945

